The Short Version
Evidence shows creatine supplementation lowers the body’s need to use methyl groups for creatine synthesis, leaving more S-adenosyl-methionine available. No study demonstrates that it boosts the enzymes or pathways that regenerate methyl groups. The claim’s wording shifts from “spares methyl groups” (supported) to “increases regeneration ability” (unsupported), so the assertion is directionally related but overstated.